com.itextpdf.tool.xml.pipeline.html

Class HtmlPipeline

java.lang.Object

com.itextpdf.tool.xml.pipeline.AbstractPipeline<HtmlPipelineContext>

com.itextpdf.tool.xml.pipeline.html.HtmlPipeline

All Implemented Interfaces:

Pipeline<HtmlPipelineContext>

public class HtmlPipeline
extends AbstractPipeline<HtmlPipelineContext>

The HtmlPipeline transforms received tags and content to PDF Elements.
To configure this pipeline a HtmlPipelineContext.

Author:

redlab_b

Constructor Summary

Constructors

Constructor and Description
HtmlPipeline(HtmlPipelineContext hpc, Pipeline next)

Method Summary

Modifier and Type	Method and Description
protected void	addStackKeeper(Tag t, HtmlPipelineContext hcc, TagProcessor tp)
Pipeline	close(WorkerContext context, Tag t, ProcessObject po) Just calls getNext. Override this to get notified on encountered closing tags.
Pipeline	content(WorkerContext context, Tag t, String text, ProcessObject po) Just calls getNext. Override this to get notified on encountered content.
String	getContextKey() This allows the descendant classes to be fetched from the context.
Pipeline	init(WorkerContext context) The init method allows implementation to initialize the pipeline.
Pipeline	open(WorkerContext context, Tag t, ProcessObject po) Just calls getNext. Override this to get notified on encountered opening tags.

Methods inherited from class com.itextpdf.tool.xml.pipeline.AbstractPipeline

getLocalContext, getNext, setNext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HtmlPipeline

public HtmlPipeline(HtmlPipelineContext hpc,
                    Pipeline next)

Parameters:

hpc - the initial HtmlPipelineContext

next - the next pipe in row

Method Detail

getContextKey

public String getContextKey()

This allows the descendant classes to be fetched from the context.

Overrides:

getContextKey in class AbstractPipeline<HtmlPipelineContext>

Returns:

getClass().getName() as name.

init

public Pipeline init(WorkerContext context)
                 throws PipelineException

Description copied from interface: Pipeline

The init method allows implementation to initialize the pipeline. e.g. Initialize their CustomContext here and add it to the WorkerContext through WorkerContext.put(String, CustomContext).

Specified by:

init in interface Pipeline<HtmlPipelineContext>

Overrides:

init in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

open

public Pipeline open(WorkerContext context,
                        Tag t,
                        ProcessObject po)
                 throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered opening tags.

Specified by:

open in interface Pipeline<HtmlPipelineContext>

Overrides:

open in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

content

public Pipeline content(WorkerContext context,
                           Tag t,
                           String text,
                           ProcessObject po)
                    throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered content.

Specified by:

content in interface Pipeline<HtmlPipelineContext>

Overrides:

content in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

text - the content

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

close

public Pipeline close(WorkerContext context,
                         Tag t,
                         ProcessObject po)
                  throws PipelineException

Description copied from class: AbstractPipeline

Just calls getNext.
Override this to get notified on encountered closing tags.

Specified by:

close in interface Pipeline<HtmlPipelineContext>

Overrides:

close in class AbstractPipeline<HtmlPipelineContext>

Parameters:

context - the WorkerContext

t - the Tag

po - a processObject to put Writables in

Returns:

the next pipeline in line

Throws:

PipelineException - can be thrown to indicate that something went wrong.

addStackKeeper

protected void addStackKeeper(Tag t,
                              HtmlPipelineContext hcc,
                              TagProcessor tp)